loop0: detected capacity change from 0 to 32768
=======================================================
WARNING: The mand mount option has been deprecated and
         and is ignored by this kernel. Remove the mand
         option from the mount to silence this warning.
=======================================================
ocfs2: Mounting device (7,0) on (node local, slot 0) with writeback data mode.
------------[ cut here ]------------
kernel BUG at fs/ocfs2/uptodate.c:509!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5338 Comm: syz.0.0 Not tainted 6.16.0-syzkaller-02094-g86aa72182095 #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:ocfs2_set_new_buffer_uptodate+0x149/0x170 fs/ocfs2/uptodate.c:509
Code: 80 3c 20 00 74 08 4c 89 f7 e8 d3 50 76 fe 4d 8b 1e 48 89 df 5b 41 5c 41 5d 41 5e 41 5f 5d 41 ff e3 cc 66 90 e8 48 c9 12 fe 90 <0f> 0b e8 40 c9 12 fe 90 0f 0b e8 38 c9 12 fe 90 0f 0b e8 30 c9 12
RSP: 0018:ffffc9000d646bc8 EFLAGS: 00010287
RAX: ffffffff83ac95b8 RBX: ffff888044270830 RCX: 0000000000100000
RDX: ffffc9000e24a000 RSI: 0000000000001e1d RDI: 0000000000001e1e
RBP: 0000000000000001 R08: ffffffff8fa078f7 R09: 1ffffffff1f40f1e
R10: dffffc0000000000 R11: fffffbfff1f40f1f R12: 1ffff92001ac8dac
R13: dffffc0000000000 R14: ffff8880442b0bc8 R15: ffff8880442b0bc8
FS:  00007efe0969e6c0(0000) GS:ffff88808d27c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efdfc7ffe00 CR3: 0000000043696000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 ocfs2_extend_dir+0x1172/0x4870 fs/ocfs2/dir.c:3301
 ocfs2_prepare_dx_dir_for_insert fs/ocfs2/dir.c:4224 [inline]
 ocfs2_prepare_dir_for_insert+0x3d7b/0x5450 fs/ocfs2/dir.c:4280
 ocfs2_link+0x95a/0x18a0 fs/ocfs2/namei.c:757
 vfs_link+0x4ea/0x6e0 fs/namei.c:4854
 do_linkat+0x272/0x560 fs/namei.c:4924
 __do_sys_link fs/namei.c:4958 [inline]
 __se_sys_link fs/namei.c:4956 [inline]
 __x64_sys_link+0x82/0x90 fs/namei.c:4956
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7efe0878e9a9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007efe0969e038 EFLAGS: 00000246 ORIG_RAX: 0000000000000056
RAX: ffffffffffffffda RBX: 00007efe089b5fa0 RCX: 00007efe0878e9a9
RDX: 0000000000000000 RSI: 0000200000000bc0 RDI: 0000200000001240
RBP: 00007efe08810d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007efe089b5fa0 R15: 00007ffef3b05008
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ocfs2_set_new_buffer_uptodate+0x149/0x170 fs/ocfs2/uptodate.c:509
Code: 80 3c 20 00 74 08 4c 89 f7 e8 d3 50 76 fe 4d 8b 1e 48 89 df 5b 41 5c 41 5d 41 5e 41 5f 5d 41 ff e3 cc 66 90 e8 48 c9 12 fe 90 <0f> 0b e8 40 c9 12 fe 90 0f 0b e8 38 c9 12 fe 90 0f 0b e8 30 c9 12
RSP: 0018:ffffc9000d646bc8 EFLAGS: 00010287
RAX: ffffffff83ac95b8 RBX: ffff888044270830 RCX: 0000000000100000
RDX: ffffc9000e24a000 RSI: 0000000000001e1d RDI: 0000000000001e1e
RBP: 0000000000000001 R08: ffffffff8fa078f7 R09: 1ffffffff1f40f1e
R10: dffffc0000000000 R11: fffffbfff1f40f1f R12: 1ffff92001ac8dac
R13: dffffc0000000000 R14: ffff8880442b0bc8 R15: ffff8880442b0bc8
FS:  00007efe0969e6c0(0000) GS:ffff88808d27c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efe0967cfc8 CR3: 0000000043696000 CR4: 0000000000352ef0